TotalMarketCap

Market cap

$79.818 B

$76.02 -0.13%

Close of 6 Oct 2026

As of 6 Oct 2026, National Grid (NGG) has a market capitalization of $79.8B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

—

Not reported

Earnings

—

Not reported

Shares outstanding

5,198,968,690

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Natural Gas Distribution, ranked by market cap

All 27 →
  1. #1EnbridgeENB$100.6B
  2. #2Williams CompaniesWMB$86.6B
  3. #3National GridNGG$79.8B
  4. #4Enterprise Products PartnersEPD$79.5B
  5. #5Kinder MorganKMI$69.9B

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Where these numbers come from

Share counts and financials for National Grid are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Last updated 7 Oct 2026. Read the methodology.